Yes, we know these look like skyscrapers that inhabitants in the next dystopian young adult novel-turned-blockbuster reside in, but they could be where you live someday. Or maybe where your kids’ kids call home. New advancements in 3D printing with sand mean we could build homes in places we never thought possible post-Pyramids. Those old mummies are all, like, “Back in my day, we built homes out here with our bare hands.”